Read it over at their Facebook page which can be viewed here.
So because of them not protecting their servers properly, we get a Batman-Inspired Mask in-game content and 30 days subscription credit added to our accounts. The in-game item is pretty cool, stats will probably suck like the Catwoman trinket some people received but I think the Style is pretty nice. the 30 days subscription credit is what the people demanded and they got it.
Good show to Sony for delivering this to its customers and hey, by the time the servers come back on, Update 3 might be ready for launch too. I can dream can't I???